i want to do this mod but i am running the ptp fpr mod for 75 psi with stage 2 injectors.
i am runing despretly lean up top so i must do this. i was wonderinf if i need a return line once i do this to controll fuel pressure?
if so perhaps i could get away with just using an aftermarket fuel pressure regulator some how instead of the whole return line kit.
any thoughts on this?
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If -6 AN is 3/8ths then why do you use 5/16ths in the diagram to go from the pump to the push fitting?
bc the nipple on the pump is for a 5/16 rather than a 3/8's or a -6an like the push fitting. basically it's either you use a 3/8" hose and it fits very loosly over the nipple on the pump and leaks or you use 5/16" hose and it fits very very tight over the push fitting and fits perfectly over the nipple on the pump. getting the hose on the push fitting can be tricky. i've done a few bottleneck fixes and i found the best way to get the hose over the push fitting is to boil some water, submerge the end of the hose in the boiling water for 20-30 seconds. then take the hose right out of the water and push it onto the push fitting. the first time i did the bottleneck fix it took me about an hour to get the hose on the fitting all the way, but now after heating up the hose it only takes a minute or two.
Good tip!! I tried using the 5/16 and couldn't get it on so I went ahead and used 3/8 I believe, that is probably my problem right now.
If -6 AN is 3/8ths then why do you use 5/16ths in the diagram to go from the pump to the push fitting?
bc the nipple on the pump is for a 5/16 rather than a 3/8's or a -6an like the push fitting. basically it's either you use a 3/8" hose and it fits very loosly over the nipple on the pump and leaks or you use 5/16" hose and it fits very very tight over the push fitting and fits perfectly over the nipple on the pump. getting the hose on the push fitting can be tricky. i've done a few bottleneck fixes and i found the best way to get the hose over the push fitting is to boil some water, submerge the end of the hose in the boiling water for 20-30 seconds. then take the hose right out of the water and push it onto the push fitting. the first time i did the bottleneck fix it took me about an hour to get the hose on the fitting all the way, but now after heating up the hose it only takes a minute or two.
Good tip!! I tried using the 5/16 and couldn't get it on so I went ahead and used 3/8 I believe, that is probably my problem right now.
yup 3/8s is wrong thats -6
5/16 smaller then -6 and 3/8s havnt had a problem yet doing it this way for myself
just have to suck it up and use some man hands on it
your FI line has the same offsett/angle as my setup did when it burst 2x's on me right after the push lok.....in the 2nd to last pic you can see where it starts to bend right after the push lok fitting....that is where it split on me. I wish there was a better alternative then to use the rubber FI line.
someone please tell me the bottle neck fix, fixes the stumbles i have at low RPM!!! they make me really really angry!
It doesn't...
your fucking kidding me.
i'm still going to do it, but at this point i want to set my car on fire!
I am with you man, thats the only reason I bought the parts for the bottleneck fix. I am so freaking sick of the hard stumble between shifts and at low RPM's. I am ready to sell my car and buy a Camry or something, lol.
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GT3076R, and everything to make it work. Full suspension set up. Still looking for more!
Just finished this today.. not that bad.. once i figured out how stuff went..
Here are some pics..
FYI The copper tube 1/2" measure 1 11/16"
I am still not 100% sure how to complete this job (I have not started yet, waiting to run the tank down). However, your pics are a huge help. I have been looking for a good how to. This is a good start. Thank you.
K I just read the thread. I have a few questions after reading this.
1. I think I should get a new Walbro just because mine has probably 20k on it. Will installing it be killing two birds with one stone or is there more than just wiring it?
2. I've only switched out the stock FPR, how do you get the cap off and then get the pump out of the canister?
3. This looks pretty simple but I read no teflon tape. How do I seal all these other lines/fittings? I know the bulkhead is sealed by the stat-o seal washers.
4. Where can I get this Kevlar fuel line so I don't have to worry about going back later?
5. Do I need to adjust fuel pressure after this?
In this compilation of MassSrt's install, is the line on the pump in the bottom middle going straight through the drilled-out hole in the canister in the pic above it? If so that's just about all the questions I have. Thanks guys.
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Gone to those big twisties in the sky.
Last edited by dangerously_cool : 03-21-2007 at 02:46 AM.
And when ppl say all the way to the rail, which part of the rail is it going to???
I am getting a returnline from a friend here shortly...its a aaronneon kit. I havent read the directions for that yet, but heard its pretty easy. Since I have the stock fuel rail how would this bottlekneck fix aid me if at all with the return line I am getting? I mean isnt the stock fpr blocked off, etc with the returnline I am getting?
I have had the bottle neck fix on my car for about a week. Well last friday i was running at the track and the fuel line i have coming off the pump popped inside the tank.
I used 5/16 Goodyear Fuel Injection hose with the blue nylon in it. And it still popped. So i pulled the tnk out yesterday to see what happened and i found the hose split in 3 places on the push lock fitting right on the bulkhead of the pump. So after close inspection i realized that I'm stretching the shit out of the hose on the fitting. Pulling the nylon out. So i decide to step up to a 3/8's fuel injection hose. It slide right on to the fitting and i clamp it down no problems. Put it on the nipple on the pump and tighten it down with a clamp(yes i know i had to crush it pretty good to get it to seal) So i do on a test drive all is good. Well im on my way back from a test drive and the damn thing blew again. Nothing like cruising down 285 and not being able to accelerate or barely maintain speed because the engine is starving for fuel. I know the hose in the tank blew again.
So my question is this. What brand of line are you using in the tank, and what kind of clamp are you using. I'm using the regular worm gear style. Gonna upgrade to some t-bolt clamps when i do the repair again. Also should i go back to the 5/16ths hose and just force it on the fitting then clamp it down? Or stick with the 3/8 and clamp the shit out of it on the pump.
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2005 - Flame Red SRT-4 317hp/367tq
P.M. Me for details on installs, maintenance, and repair work in the North Georgia Area.
i've posted up time and time again about the same shit!! I've tried eveything to prevent this problem from happening!! I don't know how some people are just fine and never have this happen to them?? I went to -6AN SS braided Aeroquip hose after 4x's of the F.I. line splitting, cracking, ballooning, etc... I use a F.I. clamp to seal it on the pump and have NO problems w/start up, FP, etc..
i've posted up time and time again about the same shit!! I've tried eveything to prevent this problem from happening!! I don't know how some people are just fine and never have this happen to them?? I went to -6AN SS braided Aeroquip hose after 4x's of the F.I. line splitting, cracking, ballooning, etc... I use a F.I. clamp to seal it on the pump and have NO problems w/start up, FP, etc..
How long have you been running with the SS braided line? And wasn't it really loose on the pump itself?
i've posted up time and time again about the same shit!! I've tried eveything to prevent this problem from happening!! I don't know how some people are just fine and never have this happen to them?? I went to -6AN SS braided Aeroquip hose after 4x's of the F.I. line splitting, cracking, ballooning, etc... I use a F.I. clamp to seal it on the pump and have NO problems w/start up, FP, etc..
How long have you been running with the SS braided line? And wasn't it really loose on the pump itself?
I've been running w/the -6 line for over 1yr w/NO problems and it fits fine over the pump and the clamp makes a nice seal....good enough for 430whp+!!!!
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